Description

BrightStor ARCserve Backup is a backup and data retention tool that integrates with other BrightStor Data Availability and BrightStor Storage Management solutions. The Message Engine service is installed and started automatically on BrightStor ARCserve Backup servers.

According to a report from Zero Day Initiative, the BrightStor ARCserve Backup Message Engine contains a vulnerability that is caused by incorrect handling of RPC requests. This vulnerability may be exploited by sending a malformed RPC request to port 6503/tcp or 6504/tcp on a vulnerable system.

Note that the vulnerable software may be running on any machines that have BrightStor ARCserve Backup products installed.

Impact

A remote, unauthenticated attacker may be able to execute arbitrary code.

Solution

Upgrade
Computer Associates has released updates to address this vulnerability.

Restrict Access

Restricting access to port 6503/tcp and 6504/tcp at the network perimeter may help mitigate this vulnerability.